JNTUK R20 B.Tech ECE 1-2 Applied Physics Material/ Notes PDF Download

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JNTUK R20 B.Tech ECE 1-2 Applied Physics Material/ Notes PDF Download: Discover the extensive JNTUK R20 B Tech CSE 1-1 Applied Physics Material, designed to provide a thorough yet accessible understanding of essential concepts. With a primary focus on coherent sources and interference, this material emphasizes the importance of matching frequencies and amplitudes for sustained interference patterns. It also clarifies the distinction between interference and diffraction, explaining how overlapping waves differ from waves bending around obstacles.

Additionally, explores practical applications of polarization techniques, such as in sunglasses, LCDs, and photography, for reducing glare and enhancing image quality. Delve into LASER basics and applications, gaining insights into stimulated emission and its diverse real-world uses, from medical procedures to advanced material processing. Access our comprehensive JNTUK R20 B Tech CSE 1-1 Applied Physics Notes in a convenient PDF format for enriched learning. Download now to elevate your understanding and delve deeper into these fascinating topics.

JNTUK R20 B.Tech ECE 1-2 Applied Physics Material – Units

Unit 1 Syllabus PDF Download | JNTUK R20 B.Tech ECE Applied Physics Material

Wave Optics

Interference: Principle of superposition –Interference of light – Interference in thin films (Reflection Geometry) & applications -Colors in thin films- Newton’s Rings- Determination of wavelength and refractive index.

Diffraction: Introduction – Fresnel and Fraunhofer diffraction – Fraunhofer diffraction due to single slit, double slit – N-slits(Qualitative) – Grating – Dispersive power and resolving power of Grating(Qualitative).

Polarization: Introduction-Types of polarization – Polarization by reflection, refraction and Double refraction – Nicol’s Prism -Half wave and Quarter wave plates

Unit 2 Syllabus PDF Download | JNTUK R20 B.Tech ECE Applied Physics Material

Lasers and Fiber optics

Lasers: Introduction – Characteristics of laser – Spontaneous and Stimulated emissions of radiation – Einstein’s coefficients – Population inversion –Lasing action- Pumping mechanisms – Ruby laser – He-Ne laser – Applications of lasers.

Fiber optics: Introduction –Principle of optical fiber- Acceptance Angle-Numerical ApertureClassification of optical fibers based on refractive index profile and modes –Propagation of electromagnetic wave through optical fibers – Applications.

Unit 3 Syllabus PDF Download | JNTUK R20 B.Tech ECE Applied Physics Material

Quantum Mechanics, Free Electron Theory and Band Theory

Quantum Mechanics: Dual nature of matter – Heisenberg’s Uncertainty Principle – Significance and properties of the wave function – Schrodinger’s time independent and dependent wave equations– Particle in a one-dimensional infinite potential well.

Free Electron Theory: Classical free electron theory (Qualitative with discussion of merits and demerits) – Quantum free electron theory– Equation for electrical conductivity based on quantum free electron theory- Fermi-Dirac distribution- Density of states (3D) – Fermi energy.

Band theory of Solids: Bloch’s Theorem (Qualitative) – Kronig – Penney model (Qualitative)- E vs K diagram – v vs K diagram – an effective mass of an electron – Classification of crystalline solids–the concept of the hole.

Unit 4 Syllabus PDF Download | JNTUK R20 B.Tech ECE Applied Physics Material

Dielectric and Magnetic Materials

Dielectric Materials: Introduction – Dielectric polarization – Dielectric polarizability, Susceptibility, and Dielectric constant – Types of polarizations- Electronic (Quantitative), Ionic (Quantitative) and Orientation polarizations (Qualitative) – Lorentz internal field Claudius- Mossotti equation- Piezoelectricity.

Magnetic Materials: Introduction – Magnetic dipole moment -MagnetizationMagnetic susceptibility and permeability – Origin of permanent magnetic moment – Classification of magnetic materials: Dia, para, Ferro, antiferro & Ferri magnetic materials – Domain concept for Ferromagnetism & Domain walls (Qualitative) – Hysteresis – soft and hard magnetic materials- Eddy currents- Engineering applications.

Unit 5 Syllabus PDF Download | JNTUK R20 B.Tech ECE Applied Physics Material

Semiconductors and Superconductors

Semiconductors: Introduction- Intrinsic semiconductors – Density of charge carriers – Electrical conductivity – Fermi level – extrinsic semiconductors – density of charge carriers – dependence of Fermi energy on carrier concentration and temperature – Drift and diffusion currents – Einstein’s equation- Hall effect – Hall coefficient –Applications of Hall effect.

Superconductors: Introduction – Properties of superconductors – Meissner effect – Type I and Type II superconductors – BCS theory (Qualitative) – Josephson effects (AC and DC) – SQUIDs – High Tc superconductors – Applications of superconductors.

JNTUK R20 B.Tech Applied Physics Material – Outcomes

• Coherent Sources and Interference: Coherent sources, with matching frequencies and amplitudes, are vital for creating sustained interference patterns.
• Engineering Applications: Interference is utilized in optical coatings to enhance transparency and minimize reflections, benefiting various industries.
• Interference vs. Diffraction: While interference involves the overlaying of waves, diffraction concerns the bending of waves around obstacles, illustrating different wave behaviors.
• Polarization Applications: Polarization techniques are employed in sunglasses, LCD screens, and photography to reduce glare and improve image clarity.
• LASER Basics and Applications: Understanding the fundamentals of LASER technology, such as stimulated emission, facilitates its wide-ranging applications, from medical procedures like surgery to material processing in industrial settings.

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